Home / 14,278.08-21,422.20-6,379.86

Finding the Fourth Proportional to 14,278.08, 21,422.20 and 6,379.86

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Solution

The fourth proportional to 14,278.08, 21,422.20 and 6,379.86 is: 9,572.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,278.08 : 21,422.20 = 6,379.86 : x
  2. Step 2: Convert to fraction form
    14,278.08/21,422.20 = 6,379.86/x
  3. Step 3: Cross multiply
    14,278.08x = 21,422.20 × 6,379.86
  4. Step 4: Simplify right side
    14,278.08x = 136,670,636.89
  5. Step 5: Solve for x
    x = 136,670,636.89/14,278.08
  6. Step 6: Final answer
    x = 9,572.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.